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<head>
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
    <style>
        span {
            flex: 1;
        }

        .aa {
            font-size: 13px;
        }

        .baseinfo_td1 {
            width: 140px;
            display: inline-block;
            height: 44px;
            line-height: 44px;
            text-align: center;
            color: #666;
            font-size: 16px;
            margin-bottom: 5px;
            border-radius: 3px;
            color: #666;
            text-decoration: none;
        }

        ul {
            list-style: none;
            width: 1600px;
        }

        li {
            float: left;
            width: 50%;
            text-align: justify;
            text-align-last: justify;
        }
    </style>
</head>

<body>
    <ul>
        <li>
            <label >
                <input type="radio" name="sel"><span>选项一</span>
            </label>
            <label >
                <input type="radio" name="sel"><span>选项一</span>
            </label>
            <label >
                <input type="radio" name="sel"><span>选项一</span>
            </label>
            <label >
                <input type="radio" name="sel"><span>选项一</span>
            </label>
            <label >
                <input type="radio" name="sel"><span>选项一</span>
            </label>
            
        </li>
    </ul>
    <script src="jquery.js"></script>
    <script>
        var a = "<span>文本</span>";
        $(".div").append(a);
    </script>
</body>
<script>
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